CVE-2025-4905: A vulnerability was found in iop-apl-uw basestation3 up to 3.0.4 and classified as problematic

Routine

MEDIUM 5.3UPGRADE

CVE-2025-4905 is a medium-severity flaw (CVSS 5.3) affecting basestation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in iop-apl-uw basestation3 up to 3.0.4 and classified as problematic. This issue affects the function load_qc_pickl of the file basestation3/QC.py. The manipulation of the argument qc_file leads to deserialization. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The code maintainer tagged the issue as closed. But there is no new commit nor release in the GitHub reposi

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-20, CWE-502
Published	2025-05-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: washington

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-19 02:15 UTCPublished CVE record published
2026-06-17 09:34 UTCUpdated Record last modified

washington basestation UPGRADE

Affected: >= 3.0.0 and <= 3.0.4

Fixed in: newer than 3.0.4

Safe to downgrade to: a release before 3.0.0

1. Check installed version

apt-cache policy basestation || rpm -q basestation || basestation --version

2. UPGRADE to newer than 3.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade basestation

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade basestation

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison basestation sudo apt install basestation=<VERSION_BEFORE_3.0.0> sudo apt-mark hold basestation

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list basestation sudo dnf downgrade basestation-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add basestation

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-4905?

basestation: upgrade to newer than 3.0.4. Exact commands for each OS are on this page.

Is CVE-2025-4905 being exploited?

CVE-2025-4905 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-4905 affect?

CVE-2025-4905 affects basestation. Severity is medium (CVSS 5.3). A vulnerability was found in iop-apl-uw basestation3 up to 3.0.4 and classified as problematic. This issue affects the function load_qc_pickl of the file basestation3/QC.py. The manipulation of the argument qc_file leads to deserialization.

How urgent is CVE-2025-4905?

Priority 35/100. Public exploit reference

Software pages

GitHub vulnerabilities

References

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